Technical data

62 Rockwell Automation Publication 1769-TD005I-EN-P - August 2014
CompactLogix Controllers Specifications
Determine Total Connection Use
The total connection requirements for a CompactLogix system include both local and remote (distributed) connections.
The controllers support these numbers of connections:
• 1769-L23x and 1769-L3x controllers support 100 connections.
• 1768-L4x controllers support 250 connections.
• CompactLogix 5370 controllers support 256 connections.
The available remote connections depend on the network interface.
Connection Type Device Quantity Connections per Device Total
Connections
Remote ControlNet communication module
Configured as a direct (none) connection
Configured as a rack-optimized connection
0 or
1
Remote I/O module over a ControlNet network (direct connection) 1
Remote Ethernet communication module
Configured as a direct (none) connection
Configured as a rack-optimized connection
0 or
1
Remote I/O module over an EtherNet/IP network (direct connection) 1
Remote device over a DeviceNet network
(accounted for in rack-optimized connection for local 1756-DNB module)
0
Produced tag and first consumer
Each additional consumer
2
1
Consumed tag 1
Cached message 1
Message 1
RSLinx Enterprise subscriber (16 maximum) 1
Total